在 PHP 中将时区设置为 UTC (0)

2022-01-16 00:00:00 date timezone utc php

为什么会这样?

date_default_timezone_set('Australia/Currie');

但这似乎根本没有任何效果?

But this doesn't seem to take any effect at all?

date_default_timezone_set('UTC');

将时区设置为 UTC 时，此值不会改变:

This value doesn't change when setting the timezone to UTC:

echo date('Y-m-d H:i:s', time());

我使用的是php 5.2.13，我的服务器时区是:

I'm using php 5.2.13, and the timezone of my server is:

$server_tz = date_default_timezone_get(); echo $server_tz; //outputs 'America/Guayaquil'

这是原始代码:

echo time() . "<br> "; date_default_timezone_set('UTC'); echo time() . "<br> ";

输出:

1317235130 1317235130

推荐答案

问题是您正在显示 time()，它是基于 GMT/UTC 的 UNIX 时间戳.这就是它不改变的原因.另一方面，date()格式化基于该时间戳的时间.

The problem is that you're displaying time(), which is a UNIX timestamp based on GMT/UTC. That’s why it doesn’t change. date() on the other hand, formats the time based on that timestamp.

timestamp 是自 Unix 纪元(格林威治标准时间 1970 年 1 月 1 日 00:00:00)以来的秒数.

A timestamp is the number of seconds since the Unix Epoch (January 1 1970 00:00:00 GMT).

echo date('Y-m-d H:i:s T', time()) . "<br> "; date_default_timezone_set('UTC'); echo date('Y-m-d H:i:s T', time()) . "<br> ";

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